How many kilometers can a National V vehicle run with one barrel of urea?

[LeAriel]

Assuming a fuel consumption of 32 liters per 100 kilometers, adding 20 liters of urea can allow the vehicle to run approximately 1,400 kilometers. In fact, the consumption of urea is related to various factors such as the vehicle's displacement, driving conditions, and the injection logic of the SCR system. Therefore, the distance that 10 liters of urea can cover varies for different diesel vehicles. More relevant information is as follows: 1. Urea consumption: Generally, the urea consumption for diesel vehicles is about 3%-5% of the diesel fuel. If we exclude other factors and calculate based solely on this, taking 5% as the standard, 100 liters of diesel would consume 5 liters of urea; thus, 10 liters of urea would require 200 liters of diesel to be fully consumed. 2. The working process of vehicle urea: SCR is a closed-loop injection system. When exhaust gases are discharged from the engine combustion chamber, the electric pump, following the instructions from the electronic control unit, draws an adequate amount of urea solution from the urea tank. The urea solution is then mixed and atomized with compressed air and enters the injection pipeline, where it is evenly sprayed into the exhaust via the urea nozzle. At this point, the urea solution decomposes under high temperature to generate NH₃, which simultaneously undergoes a catalytic reduction reaction with NOx, ultimately producing harmless N2 and H₂O that are discharged.

[McReagan]

I've been driving a China V diesel vehicle for over a decade. A 10-liter barrel of urea typically lasts about 3,000 to 4,000 kilometers, but this really depends on the specific model and driving habits. With my SUV in city traffic jams, urea consumption is faster—one barrel lasts at most 2,500 km, while on the highway, it can stretch to over 3,500 km. According to the vehicle manual, urea consumption is usually 3% to 5% of diesel usage. For example, with a fuel consumption of 8 liters per 100 km, urea consumption is about 0.4 liters per 100 km. Temperature also plays a key role—in sub-zero winter conditions, the urea heating system uses more, reducing the distance per barrel. I recommend keeping an eye on the dashboard alerts after refilling and not waiting until the warning light comes on, as this could cause issues with the emission system or even trigger speed limitations. For long trips, carry a spare barrel just in case. Developing smooth driving habits, like avoiding sudden acceleration, can significantly reduce urea waste and extend the system's lifespan.

[IrisFitz]

China V vehicle urea is for environmental protection and emission reduction, and I think this matter deserves attention. On average, a 10-liter barrel of urea can last about 3,000 kilometers, but there are many influencing factors: consumption is higher in congested urban traffic, possibly only 2,500 km; while driving at a constant speed on highways can extend it to 4,000 km. There are significant differences between vehicle types—sedans are more fuel-efficient, while heavy trucks or off-road vehicles might halve the range to 1,500 km. From an environmental perspective, less urea consumption means less pollution; economically, a 60-yuan barrel costs less than 0.03 yuan per kilometer, which is much more cost-effective than fines for exceeding emission standards. Remember to choose urea from reputable brands, as low-quality products can easily clog the injector. In winter temperatures below zero, using antifreeze urea is safer. Regular system maintenance, checking sensors and wiring, and optimizing consumption rates protect the environment and save money.

[DelCarmen]

I'm a newbie who just bought a National V standard car and don't know much about these things. I asked a mechanic, who said that for an ordinary sedan, a 10-liter barrel of urea can last about 3,200 kilometers. Specifically, refer to the manual for calculation: assuming 6 liters of diesel consumption per 100 kilometers, with urea accounting for 4%, that's 0.24 liters, so one barrel can last 4,166 kilometers; but consumption increases when driving in the city, and dropping to 2,500 kilometers is also normal. When the urea level is low, the dashboard will light up, so go to the gas station to refill it immediately—don't delay. The urea filler port is under the hood, so be careful not to mistakenly add it to the fuel tank. Based on my own experience, refilling once a month seems sufficient, and developing a habit of regular checks can avoid trouble. Simply put, factors affecting consumption include driving speed and smoothness—driving on highways saves urea.